Method and device for acquiring carbon emission of photovoltaic project and electronic equipment

Abstract

The invention provides a photovoltaic project carbon emission obtaining method and device and electronic equipment, and the method comprises the steps: obtaining a land use scene set of a project land region of a photovoltaic project in a project life time range, and the land use scene set comprises a land use type conversion scene, a land management scene and a land recovery scene; for any land scene, acquiring a scene carbon emission parameter set of the project land area of the photovoltaic project in the land scene; and according to the scene carbon emission parameter set of the project land area in each land scene in the land scene set, obtaining the target carbon emission of the photovoltaic project in the project life time range. Accurate acquisition of the carbon emission in the whole project life time range of the photovoltaic project is realized, the accuracy of acquisition of the carbon emission in the project life time range of the photovoltaic project is improved, and effective quantification of the carbon emission in the project life time range of the photovoltaic project is realized.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic power generation technology, and in particular to a method, device and electronic equipment for obtaining carbon emissions from a photovoltaic project. Background Art

[0002] With the development of technology and against the backdrop of global warming, the world's energy structure is moving towards a low-carbon and carbon-free direction. In this scenario, the development of new energy represented by photovoltaics has become a general trend in energy transformation.

[0003] Among photovoltaic power generation projects, centralized photovoltaic power generation projects occupy a large area and involve complex land types. In this scenario, the physical and chemical properties of vegetation and soil in the project land of centralized photovoltaic power generation projects may change under the influence of construction, operation and land management activities, which may affect the biomass of the project land and the carbon stock in carbon pools such as soil, thereby causing the emission or removal of carbon dioxide in the atmosphere to be affected to a certain extent.

[0004] Therefore, it is very important to accurately obtain the carbon emissions of photovoltaic projects. Summary of the invention

[0005] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0006] To this end, the first purpose of this application is to propose a method for obtaining carbon emissions from a photovoltaic project.

[0007] The second object of the present application is to provide a device.

[0008] The third objective of the present application is to provide an electronic device.

[0009] A fourth objective of the present application is to provide a computer-readable storage medium.

[0010] A fifth object of the present application is to provide a computer program product.

[0011] To achieve the above-mentioned purpose, the first aspect of the present application proposes a method for obtaining carbon emissions of a photovoltaic project, including: obtaining a set of land use scenarios for the project land area of ​​the photovoltaic project within the project life cycle, wherein the land use scenario set includes land use type conversion scenarios, land management scenarios and land restoration scenarios; for any land use scenario, obtaining a set of scenario carbon emission parameters for the project land area of ​​the photovoltaic project under the land use scenario; and obtaining the target carbon emissions of the photovoltaic project within the project life cycle according to the set of scenario carbon emission parameters for the project land area under each land use scenario in the land use scenario set.

[0012] To achieve the above-mentioned purpose, the second aspect of the present application proposes a device for obtaining carbon emissions of a photovoltaic project, the device comprising: a first acquisition module, used to obtain a set of land use scenarios of the project land area of ​​the photovoltaic project within the project life cycle, wherein the land use scenario set includes land use type conversion scenarios, land management scenarios and land restoration scenarios; a second acquisition module, used to obtain a set of scenario carbon emission parameters of the project land area of ​​the photovoltaic project under the land use scenario for any land use scenario; a third acquisition module, used to obtain the target carbon emissions of the photovoltaic project within the project life cycle according to the set of scenario carbon emission parameters of the project land area under each land use scenario in the land use scenario set.

[0013] To achieve the above-mentioned purpose, the third aspect embodiment of the present application proposes an electronic device, comprising: a processor, and a memory communicatively connected to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the method for obtaining carbon emissions of photovoltaic projects proposed in the first aspect above.

[0014] To achieve the above-mentioned purpose, the fourth aspect embodiment of the present application proposes a computer-readable storage medium, in which computer execution instructions are stored. When the computer execution instructions are executed by a processor, they are used to implement the method for obtaining carbon emissions of photovoltaic projects proposed in the first aspect above.

[0015] To achieve the above-mentioned purpose, the fifth aspect of the present application proposes a computer program product, including a computer program, which, when executed by a processor, implements the method for obtaining carbon emissions of a photovoltaic project proposed in the first aspect.

[0016] The carbon emissions acquisition method, device and electronic device for photovoltaic projects provided in the present application obtain a land use scenario set of the project land area of ​​the photovoltaic project, and a scenario carbon emission parameter set under each land use scenario in the land use scenario set, and obtain the target carbon emissions of the photovoltaic project within the project life time range according to the scenario carbon emission parameter set under each land use scenario. In the present application, based on the development progress of the photovoltaic project within the project life time range, the land use scenario set of the project land area is determined, and the target carbon emissions of the photovoltaic project within the project life time range are obtained according to the scenario carbon emission parameter set of each land use scenario set, thereby achieving accurate acquisition of carbon emissions within the entire project life time range of the photovoltaic project, improving the accuracy of obtaining carbon emissions of the photovoltaic project within the project life time range, and achieving effective quantification of carbon emissions of the photovoltaic project within the project life time range.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 A schematic diagram of a process for obtaining carbon emissions from a photovoltaic project according to an embodiment of the present application;

[0020] Figure 2 A schematic diagram of a process for obtaining carbon emissions from a photovoltaic project according to another embodiment of the present application;

[0021] Figure 3 This is a schematic diagram of the structure of a device for acquiring carbon emissions from a photovoltaic project according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0023] The following describes the method and device for obtaining carbon emissions of a photovoltaic project in an embodiment of the present application with reference to the accompanying drawings.

[0024] Figure 1 FIG. 1 is a flow chart of a method for obtaining carbon emissions of a photovoltaic project according to an embodiment of the present application. Figure 1 As shown, the method includes:

[0025] S101, obtaining a land use scenario set of a project land area of ​​a photovoltaic project within the project life cycle, wherein the land use scenario set includes a land use type conversion scenario, a land management scenario, and a land restoration scenario.

[0026] In the embodiments of the present application, within the life cycle of the photovoltaic project, there are various land use scenarios for the project land area where the photovoltaic project is located. Among them, within the construction, construction and operation and maintenance time of the photovoltaic project, the photovoltaic project needs to transform the land use type and carry out land management for the project land area where the photovoltaic project is located.

[0027] In this scenario, the land use scenario corresponding to the land use type conversion can be marked as the land use type conversion scenario for the photovoltaic project.

[0028] As an example, due to the construction, operation and maintenance of a photovoltaic project, the project land area where the photovoltaic project is located has been transformed from the land use type before the project was built to the land use type during the construction, operation and maintenance period of the photovoltaic project. This scenario can be understood as a land use type transformation scenario for the project land area of ​​the photovoltaic project.

[0029] Accordingly, the land use scenario of land management in the project land area during the construction, operation and maintenance of the photovoltaic project can be marked as the land management scenario of the photovoltaic project.

[0030] As an example, the construction, operation and maintenance of a photovoltaic project requires the destruction of vegetation in the project land area and other similar management operations. This scenario can be understood as a land management scenario for the project land area of ​​a photovoltaic project.

[0031] Furthermore, when the photovoltaic project equipment is recycled after the operation is completed, the scene of land restoration in the project land area where the photovoltaic project equipment is located can be marked as the land restoration scene of the photovoltaic project.

[0032] As an example, when a photovoltaic project ends, the project equipment needs to be recycled. In this scenario, the vegetation on the project land area will resume growth. This scenario can be understood as a land restoration scenario for the project land area of ​​the photovoltaic project.

[0033] Furthermore, a scenario set including land use type conversion scenarios, land management scenarios and land restoration scenarios is determined as a land use scenario set for the project land area of ​​the photovoltaic project.

[0034] S102, for any land use scenario, obtaining a scenario carbon emission parameter set of a project land area of ​​a photovoltaic project under the land use scenario.

[0035] In the embodiment of the present application, the carbon emission parameters of the photovoltaic project under different land use scenarios may be different. Therefore, the scenario-based emission parameters of the photovoltaic project under each scenario of the land use scenario set can be obtained separately, and then the total target carbon emissions of the photovoltaic project within the project life cycle can be obtained.

[0036] Optionally, for any land use scenario, at least one possible emission item of carbon emissions generated by the photovoltaic project under the land use scenario can be obtained, and the carbon emission parameters under each possible emission item of the at least one possible emission item can be calculated to obtain at least one carbon emission parameter under the land use scenario, and the set consisting of the at least one carbon emission parameter can be determined as the scenario carbon emission parameter set under the land use scenario.

[0037] S103, obtaining the target carbon emissions of the photovoltaic project within the project life span according to the scenario carbon emission parameter set of the project land area under each land use scenario in the land use scenario set.

[0038] In an embodiment of the present application, a preset carbon emission algorithm can be obtained, and the scene carbon emission parameter set under each land use scenario in the land use scenario set can be algorithmically processed according to the carbon emission algorithm, and then the target carbon emissions of the photovoltaic project within the project life time range can be obtained according to the results of the algorithm processing.

[0039] The photovoltaic project may be a centralized photovoltaic project or other forms of photovoltaic projects, which are not specifically limited here.

[0040] The method for obtaining carbon emissions of a photovoltaic project proposed in the present application obtains a set of land use scenarios of the project land area of ​​the photovoltaic project, and a set of scene carbon emission parameters under each land use scenario in the set of land use scenarios, and obtains the target carbon emissions of the photovoltaic project within the project life time range according to the set of scene carbon emission parameters under each land use scenario. In the present application, based on the development progress of the photovoltaic project within the project life time range, the set of land use scenarios of the project land area is determined, and according to the respective scene carbon emission parameter sets of the land use scenario sets, the target carbon emissions of the photovoltaic project within the project life time range are obtained, thereby achieving accurate acquisition of carbon emissions within the entire project life time range of the photovoltaic project, improving the accuracy of obtaining carbon emissions of the photovoltaic project within the project life time range, and achieving effective quantification of carbon emissions of the photovoltaic project within the project life time range.

[0041] In the above embodiment, the target carbon emission amount can be obtained by combining Figure 2 Further understanding, Figure 2 FIG. 1 is a flow chart of a method for obtaining carbon emissions of a photovoltaic project according to another embodiment of the present application. Figure 2 As shown, the method includes:

[0042] S201, for any land use scenario, obtaining a scenario carbon emission parameter set of a project land area of ​​a photovoltaic project under the land use scenario.

[0043] In an embodiment of the present application, the land used for the construction, construction, operation and maintenance of a photovoltaic project can be marked as the project land area of ​​the photovoltaic project, wherein a project parameter set of the photovoltaic project can be obtained, wherein the project parameter set includes at least the total installed capacity of the photovoltaic project, the photovoltaic type, the full area efficiency, the project location, the photovoltaic simulation installation arrangement and the grid-connected voltage level, and the project land area of ​​the photovoltaic project is obtained according to each project parameter in the project parameter set.

[0044] Optionally, based on the analysis and determination method of the project land area in the relevant technology, parameter analysis can be performed on the project parameter set including the total installed capacity of the photovoltaic project, photovoltaic type, full area efficiency, project location, photovoltaic simulation installation arrangement and grid-connected voltage level, and then based on the results of the analysis, the land area used by the photovoltaic project is determined and marked as the project land area of ​​the photovoltaic project.

[0045] It can be understood that, for any photovoltaic project, by analyzing the parameters in its corresponding project parameter set, a land area that can meet the conditions for its construction, construction, operation and maintenance can be selected as the project land area for the photovoltaic project.

[0046] In this scenario, a land use scenario set consisting of different land use scenarios for the project land area of ​​the photovoltaic project can be obtained, and then the target carbon emissions of the photovoltaic project within the project life cycle can be obtained according to the scene carbon emission parameter sets of each land use scenario set.

[0047] As a possible implementation method, in response to the land use scenario being a land use type conversion scenario, the first biomass carbon pool change value of the first herbaceous biomass carbon pool and the first soil carbon pool change value of the first soil carbon pool in the project land area under the land use type conversion scenario are obtained, and based on the first biomass carbon pool change value and the first soil carbon pool change value, a scenario emission parameter set of the project land area under the land use type conversion scenario is obtained.

[0048] In an embodiment of the present application, the plant biomass carbon pool of the project land area under the land use type conversion scenario can be marked as the first plant biomass parameter, and the soil carbon pool of the project land area under the land use type conversion scenario can be marked as the first soil carbon pool.

[0049] Optionally, the first biomass carbon stock change value of the first thatched house biomass carbon stock in the project land area under the land use type conversion scenario can be obtained based on the following formula:

[0050] ΔCB1=∑(ΔCG i +ΔC 转化 )

[0051] In the above formula, ΔCB1 represents the change value of the first biomass carbon pool of the first grass house biomass carbon pool in the project land area under the land use type conversion scenario, and ΔCG i Indicates the increase in biomass carbon stocks due to vegetation growth in the project land area (tons of carbon / year), ΔC 转化 It represents the initial carbon stock change value (tons of carbon / year) of biomass in the project land area when the project land area is converted to other land use types, and i represents the land type of the project land area.

[0052] Among them, the increase in biomass carbon stock caused by vegetation growth in the project land area is ΔCG. i , can be obtained based on the following formula:

[0053] ΔCG i =∑{A i ×[I v ×BCEF×(1+R)]×CF}

[0054] In the above formula, ΔCG i It represents the increase in biomass carbon stock caused by vegetation growth in the project land area (tons of carbon / year). i represents the land area of ​​the project land area (hectares), I v is the average annual net increase of vegetation on the land in the project land area (cubic meters / hectare / year), BCEF is the conversion coefficient of vegetation purification into aboveground biomass increase (tons of dry matter aboveground biomass / cubic meter), R is the ratio of belowground biomass to aboveground biomass of vegetation (tons of dry matter aboveground biomass / tons of dry matter belowground biomass), CF is the carbon ratio of vegetation dry matter (tons of carbon / tons of dry matter), and i is the land type of the project land area.

[0055] And, the initial carbon stock change value ΔC of the biomass on the project land area when the project land area is converted to other land use types 转化 , can be obtained based on the following formula:

[0056] ΔC 转化 =∑[(ΔB i ×ΔA 转化为其他i )×CF]

[0057] In the above formula, ΔC 转化 Indicates the initial carbon stock change value of the biomass in the project land area when the project land area is converted to other land use types, ΔB i It represents the difference between the biomass carbon stock on the land just after the land use type conversion and the biomass carbon stock on the land before the conversion in the project land area (tons of dry matter / hectare), ΔA 转化为其他i represents the land use conversion area from the project land area to other land use types (hectares / year), CF is the carbon fraction of vegetation dry matter (tons of C / tons of dry matter), and i represents the land type of the project land area.

[0058] Optionally, the first soil carbon pool change value of the first soil carbon pool of the project land area under the land use type conversion scenario can be obtained based on the following formula:

[0059] ΔC 土壤1=ΔC 矿质1

[0060] In the above formula, ΔC 土壤1 Indicates the change value of the first soil carbon pool in the project land area under the land use type conversion scenario (tons of carbon / year), ΔC 矿质1 It represents the change in mineral soil carbon stocks in the project land area during the operation and maintenance of the PV project (tons of carbon / year).

[0061] Among them, the change value of the mineral soil carbon pool in the project land area during the operation and maintenance of the photovoltaic project is ΔC 矿质1 , can be obtained based on the following formula:

[0062]

[0063] In the above formula, ΔC 矿质1 Indicates the change in the mineral soil carbon pool in the project land area during the operation and maintenance of the photovoltaic project, SOC i0 It indicates the soil organic carbon pool parameter (tons of carbon) of the project land area at the end of the operation and maintenance period of the photovoltaic project. SOC i(0-T) It represents the soil organic carbon pool parameter (tons of carbon) of the project land area at the beginning of the operation and maintenance period of the photovoltaic project, D represents the operation and maintenance period of the photovoltaic project (year), and i represents the land type of the project land area.

[0064] The calculation method of soil organic carbon pool parameter SOC in the project land area is as follows:

[0065] SOC=∑(SOC 参考 ×F LU ×F MG ×F I ×A i )

[0066] In the above formula, SOC represents the soil organic carbon pool parameter of the project land area. 参考 represents the reference carbon stock parameter (tons of carbon / hectare) of the project land area, F LU represents the land use system stock change factor, F MG represents the stock change factor of the management system, F I A represents the stock change factor of organic matter input, i Represents the area (hectares) of land use conversion in the project area.

[0067] In this scenario, the parameter set consisting of the first biomass carbon stock change value and the first soil carbon stock change value can be determined as the scenario emission parameter set of the project land area under the land use type conversion scenario.

[0068] As another possible implementation method, in response to the land use scenario being a land management scenario, the second biomass carbon pool change value of the second herbaceous biomass carbon pool in the project land area under the land management scenario, the nitrous oxide emissions of the project land area under the land management scenario, and the carbon dioxide emissions generated by the application of lime and urea in the project land area under the land management scenario are obtained, and based on the second biomass carbon pool change value, nitrous oxide emissions and carbon dioxide emissions, a set of scenario emission parameters for the project land area under the land management scenario is obtained.

[0069] In an embodiment of the present application, the plant biomass carbon pool in the project land area under the land management scenario can be marked as the second plant biomass carbon pool.

[0070] Optionally, the acquisition of the second biomass carbon pool change value of the second plant biomass carbon pool in the project land area under the land management scenario can be achieved based on the following formula:

[0071] ΔCB2=∑(-ΔC Li )

[0072] In the above formula, ΔCB2 represents the change value of the second biomass carbon pool of the second plant biomass carbon pool in the project land area under the land management scenario, ΔC Li It represents the carbon reduction value (tons of carbon / year) caused by the loss of vegetation biomass due to land management in the project land area.

[0073] The formula for obtaining the carbon reduction value caused by the loss of vegetation biomass due to land management in the project land area can be as follows:

[0074] ΔC Li =∑[H i ×BCEF×(1+R)×CF]

[0075] In the above formula, ΔC Li It represents the carbon reduction value caused by the loss of vegetation biomass due to land management in the project land area, H i It represents the amount of vegetation removed in the project land area (cubic meters / year), CF is the carbon ratio of vegetation dry matter (tons of carbon / tons of dry matter), BCEF represents the conversion factor of converting the purification amount of vegetation into aboveground biomass increment (tons of dry matter aboveground biomass / cubic meter), R represents the ratio of belowground biomass to aboveground biomass of vegetation (tons of dry matter aboveground biomass / tons of dry matter belowground biomass), and i represents the land type of the project land area.

[0076] Alternatively, the formula for obtaining nitrous oxide emissions from the project land area under the land management scenario can be as follows:

[0077] ΔN2O=ΔN2O直接 +ΔN2O 间接

[0078] In the above formula, ΔN2O represents the nitrous oxide emissions (kgN2O-N / year) of the project land area under the land management scenario, and ΔN2O 直接 represents the direct nitrous oxide emissions (kgN2O-N / year) generated by the project land area under the land management scenario, ΔN2O 间接 It represents the indirect nitrous oxide emissions (kgN2O-N / year) generated by the project land area under the land management scenario.

[0079] Among them, the direct nitrous oxide emissions generated by the project land area under the land management scenario can be obtained based on the following formula:

[0080] ΔN2O 直接 =F SN ×EF1+F PRP ×EF PRP

[0081] In the above formula, ΔN2O 直接 F represents the direct nitrous oxide emissions generated by the project land area under the land management scenario (kgN2O-N / year), SN represents the annual application amount of artificial nitrogen fertilizer in the soil of the project land area, and EF1 represents the emission factor of nitrous oxide emissions caused by nitrogen input in the project land area. F PRP The EF represents the amount of nitrogen excreted by grazing livestock each year (kgN / year). PRP Emission factors for nitrous oxide emissions from manure deposits of grazing livestock

[0082] And, the indirect nitrous oxide emissions generated by the project land area under the land management scenario can be obtained based on the following formula:

[0083]

[0084] In the above formula, ΔN2O 间接 represents the indirect nitrous oxide emissions generated by the project land area under the land management scenario, F SN Represents the annual amount of artificial nitrogen fertilizer applied to the soil in the project land area, Expressed as the ratio of fertilizer nitrogen volatilized in the form of NH3 and NO3 F PRP represents the amount of nitrogen excreted by grazing livestock each year (kgN / year), Indicates the proportion of nitrogen in grazing livestock excreta volatilized in the form of NH3 and NO3 EF2 represents the nitrous oxide emission factor for atmospheric deposition of nitrogen on soil and water surfaces

[0085] Alternatively, the formula for obtaining the carbon dioxide emissions from the application of lime and urea in the project land area under the land management scenario can be as follows:

[0086] ΔCO2=ΔCO 2石灰 +ΔCO 2尿素

[0087] In the above formula, ΔCO2 represents the carbon dioxide emissions generated by the application of lime and urea in the project land area under the land management scenario, and ΔCO 2石灰 represents the carbon emissions from lime application (tons of carbon per year), ΔCO 2尿素 It represents the carbon emissions from urea application (tons of carbon / year).

[0088] Among them, the carbon emissions generated by lime application can be obtained based on the following formula:

[0089] ΔCO 2石灰 =M 石灰 ×EF 石灰

[0090] In the above formula, ΔCO 2石灰 represents the carbon emissions from urea application, M 石灰 It represents the application amount of limestone or dolomite in the project land area under the land management scenario (tons of limestone or dolomite / year), EF 石灰 Express the emission factor for limestone or dolomite (tonnes of C / tonne of limestone or dolomite).

[0091] And, the carbon emissions generated by urea application can be obtained based on the following formula:

[0092] ΔCO 2尿素 =M 尿素 ×EF 尿素

[0093] In the above formula, ΔCO 2尿素 represents the carbon emissions from urea application, M 尿素 Indicates the amount of urea applied in the project land area under the land management scenario (tons of urea / year), EF 尿素 Expresses the emission factor of urea (tonnes of carbon / tonnes of urea).

[0094] In this scenario, the parameter set consisting of the second biomass carbon pool change value, nitrous oxide emissions and carbon dioxide emissions can be determined as the scenario emission parameter set of the project land area under the land management scenario.

[0095] As another possible implementation method, in response to the land use scenario being a land restoration scenario, the third biomass carbon pool change value of the third herbaceous biomass carbon pool and the second soil carbon pool change value of the second soil carbon pool in the project land area under the land restoration scenario are obtained, and based on the third biomass carbon pool change value and the second soil carbon pool change value, a scenario emission parameter set for the project land area under the land restoration scenario is obtained.

[0096] In an embodiment of the present application, the plant biomass carbon pool of the project land area under the land restoration scenario can be marked as the third plant biomass carbon pool, and the soil carbon pool of the project land area under the land restoration scenario can be marked as the second soil carbon pool.

[0097] Alternatively, the change value of the third biomass carbon pool of the third plant biomass carbon pool in the project land area under the land restoration scenario can be obtained based on the following formula:

[0098] ΔCB 恢复 =∑(ΔCG 恢复i +ΔC 恢复转化i )

[0099] In the above formula, ΔCB 恢复 Indicates the change value of the third biomass carbon pool of the third grass biomass carbon pool in the project land area under the land restoration scenario, ΔCG 恢复i It represents the increase in biomass carbon stock caused by vegetation growth in the project land area under the land restoration scenario (tons of carbon / year), ΔC 恢复转化i It represents the initial carbon stock change value (tons of carbon / year) of biomass on the land used for land restoration in the project land area, and i represents the land type of the project land area.

[0100] Among them, the added value of biomass carbon stock caused by vegetation growth in the project land area under the land restoration scenario can be obtained based on the following formula:

[0101] ΔCG 恢复i =∑{A i恢复 ×[I v ×BCEF×(1+R)]×CF}

[0102] In the above formula, ΔCG 恢复i A represents the increase in biomass carbon stock caused by vegetation growth in the project land area under the land restoration scenario. i恢复 represents the land restoration area of ​​the project land area (hectares), CF is the carbon fraction of vegetation dry matter (tons of carbon / ton of dry matter), I vis the average annual net increase of vegetation on the land in the project land area (cubic meters / hectare / year), BCEF is the conversion coefficient of vegetation purification into aboveground biomass increase (tons of dry matter aboveground biomass / cubic meter), R is the ratio of underground biomass to aboveground biomass of vegetation (tons of dry matter aboveground biomass / tons of dry matter belowground biomass), and i is the land type of the project land area.

[0103] And, the initial carbon stock change value of biomass on lands restored in the project land area can be obtained based on the following formula:

[0104] ΔC 恢复转化i =∑[(ΔB i恢复 ×ΔA 恢复转化为其他i )×CF]

[0105] In the above formula, ΔC 恢复转化i Indicates the initial carbon stock change value of biomass on land restored in the project land area, ΔB i恢复 It represents the difference between the biomass carbon stock on the land in the project area just after restoration and the biomass carbon stock before restoration (tons of dry matter / hectare), ΔA 恢复转化为其他i represents the land use change area of ​​land that has undergone land restoration in the project land area (hectares / year), CF is the carbon fraction of vegetation dry matter (tons of carbon / tons of dry matter), and i represents the land type in the project land area.

[0106] Optionally, the change value of the second soil carbon pool of the project land area under the land restoration scenario can be obtained based on the following formula:

[0107] ΔC 土壤2 =ΔC 矿质2

[0108] In the above formula, ΔC 土壤2 Indicates the change in soil carbon stock during land restoration in the project land area under the land restoration scenario (tons of carbon / year), ΔC 矿质2 Represents the change in mineral soil carbon stocks in the project land area during land restoration under the land restoration scenario (tons of carbon / year).

[0109] Among them, the change value of the mineral soil carbon pool in the project land area during the operation and maintenance of the photovoltaic project is ΔC 矿质1 , can be obtained based on the following formula:

[0110]

[0111] In the above formula, ΔC 矿质2 Indicates the change in mineral soil carbon stocks in the project land area under the land restoration scenario, SOCi0 It represents the soil organic carbon stock parameter (tons of carbon) of the project land area at the end of the land restoration period under the land restoration scenario. i(0-T) It represents the soil organic carbon pool parameter (tons of carbon) of the project land area at the beginning of the land restoration period under the land restoration scenario, D represents the land restoration period (years) of the project land area, and i represents the land type of the project land area.

[0112] The calculation method of soil organic carbon pool parameter SOC in the project land area is as follows:

[0113] SOC=∑(SOC 参考 ×F LU ×F MG ×F I ×A i )

[0114] In the above formula, SOC represents the soil organic carbon pool parameter of the project land area. 参考 represents the reference carbon stock parameter (tons of carbon / hectare) of the project land area, F LU represents the land use system stock change factor, F MG represents the stock change factor of the management system, F I A represents the stock change factor of organic matter input, i Represents the area (hectares) of land use conversion in the project area.

[0115] In this scenario, the parameter set consisting of the third biomass carbon stock change value and the second soil carbon stock change value can be determined as the scenario emission parameter set of the project land area under the land restoration scenario.

[0116] S202, obtaining the target carbon emissions of the photovoltaic project within the project life span according to the scenario emission parameter set of the project land area under each land use scenario in the land use scenario set.

[0117] Get the preset carbon emissions calculation formula.

[0118] Optionally, the carbon emissions calculation formula is as follows:

[0119]

[0120] Where, ΔC emmission represents the target carbon emission, ΔCB1 represents the first biomass carbon pool change value, ΔC 土壤1 represents the change value of the first soil carbon pool, ΔCB2 represents the change value of the second biomass carbon pool, and ΔCB 恢复 Indicates the change value of the third biomass carbon pool, ΔC 土壤2represents the change value of the second soil carbon pool, ΔN2O represents the emission of nitrous oxide, ΔN2O represents the global warming potential parameter, and ΔCO2 represents carbon dioxide emissions.

[0121] In this scenario, the parameters included in the scenario emission parameter set under each land use scenario in the land use scenario set can be input into the carbon emission calculation formula to obtain the target carbon emissions of the photovoltaic project within the project life cycle.

[0122] It can be understood that the scenario carbon emission parameter set including the first biomass carbon pool change value and the first soil carbon pool change value in the land use type conversion scenario of the project land area, the scenario carbon emission parameter set including the second biomass carbon pool change value, nitrous oxide emissions and carbon dioxide emissions in the land management scenario of the project land area, and the scenario carbon emission parameter set including the third biomass carbon pool change value and the second soil carbon pool change value in the land restoration scenario of the project land area are input into the above-mentioned carbon emission calculation formula, and then the target carbon emissions of the photovoltaic project within the project life time range are obtained through calculation of the carbon emission calculation formula.

[0123] The method for obtaining carbon emissions from photovoltaic projects proposed in the present application determines a set of land use scenarios for the project land area based on the development progress of the photovoltaic project within the project life cycle, and obtains the target carbon emissions of the photovoltaic project within the project life cycle according to a set of scenario carbon emission parameters of each land use scenario set. This achieves accurate acquisition of the carbon emissions of the photovoltaic project throughout the project life cycle, improves the accuracy of obtaining the carbon emissions of the photovoltaic project within the project life cycle, and achieves effective quantification of the carbon emissions of the photovoltaic project within the project life cycle.

[0124] Corresponding to the methods for obtaining carbon emissions from photovoltaic projects proposed in the above-mentioned embodiments, an embodiment of the present application further proposes a device for obtaining carbon emissions from photovoltaic projects. Since the device for obtaining carbon emissions from photovoltaic projects proposed in the embodiment of the present application corresponds to the methods for obtaining carbon emissions from photovoltaic projects proposed in the above-mentioned embodiments, the implementation methods of the above-mentioned methods for obtaining carbon emissions from photovoltaic projects are also applicable to the device for obtaining carbon emissions from photovoltaic projects proposed in the embodiments of the present application, and will not be described in detail in the following embodiments.

[0125] In order to implement the above embodiment, the present application also proposes a device for obtaining carbon emissions from a photovoltaic project. Figure 3 This is a schematic diagram of the structure of a device for obtaining carbon emissions from a photovoltaic project according to an embodiment of the present application. Figure 3 As shown, the carbon emission acquisition device 300 of the photovoltaic project includes:

[0126] A first acquisition module 31 is used to acquire a land use scenario set of a project land area of ​​a photovoltaic project within the project life time range, wherein the land use scenario set includes a land use type conversion scenario, a land management scenario and a land restoration scenario;

[0127] The second acquisition module 32 is used to acquire a scenario carbon emission parameter set of a project land area of ​​a photovoltaic project under a land use scenario for any land use scenario;

[0128] The third acquisition module 33 is used to obtain the target carbon emissions of the photovoltaic project within the project life span according to the scenario carbon emission parameter set of the project land area under each land use scenario in the land use scenario set.

[0129] It should be noted that the explanation of the aforementioned embodiment of the method for obtaining carbon emissions from a photovoltaic project is also applicable to the device for obtaining carbon emissions from a photovoltaic project in this embodiment, and will not be repeated here.

[0130] In an embodiment of the present application, the second acquisition module 32 is also used to: in response to the land use scenario being a land use type conversion scenario, obtain the first biomass carbon pool change value of the first herbaceous biomass carbon pool and the first soil carbon pool change value of the first soil carbon pool in the project land area under the land use type conversion scenario; based on the first biomass carbon pool change value and the first soil carbon pool change value, obtain a scenario emission parameter set for the project land area under the land use type conversion scenario.

[0131] In an embodiment of the present application, the second acquisition module 32 is also used to: in response to the land use scenario being a land management scenario, obtain the second biomass carbon pool change value of the second plant biomass carbon pool in the project land area under the land management scenario, the nitrous oxide emissions of the project land area under the land management scenario, and the carbon dioxide emissions generated by the application of lime and urea in the project land area under the land management scenario; based on the second biomass carbon pool change value, nitrous oxide emissions and carbon dioxide emissions, obtain a set of scenario emission parameters for the project land area under the land management scenario.

[0132] In the embodiment of the present application, the second acquisition module 32 is also used for: in response to the land use scenario being a land restoration scenario, obtaining the third biomass carbon pool change value of the third herbaceous biomass carbon pool and the second soil carbon pool change value of the second soil carbon pool in the project land area under the land restoration scenario; and obtaining a set of scenario emission parameters for the project land area under the land restoration scenario based on the third biomass carbon pool change value and the second soil carbon pool change value.

[0133] In an embodiment of the present application, the third acquisition module 33 is also used to: obtain a preset carbon emission calculation formula; input the parameters included in the scene emission parameter set under each land use scenario in the land use scenario set into the carbon emission calculation formula to obtain the target carbon emissions of the photovoltaic project within the project life cycle.

[0134] In the embodiment of the present application, the carbon emission calculation formula is as follows:

[0135]

[0136] Where, ΔC emmission represents the target carbon emission, ΔCB1 represents the change value of the first biomass carbon pool, ΔC 土壤1 represents the change value of the first soil carbon pool, ΔCB2 represents the change value of the second biomass carbon pool, and ΔCB 恢复 Indicates the change value of the third biomass carbon pool, ΔC 土壤2 represents the change value of the second soil carbon pool, ΔN2O represents the emission of nitrous oxide, ΔN2O represents the global warming potential parameter, and ΔCO2 represents carbon dioxide emissions.

[0137] In an embodiment of the present application, the first acquisition module 31 is also used to: obtain a project parameter set of a photovoltaic project, wherein the project parameter set includes at least the total installed capacity of the photovoltaic project, the photovoltaic type, the full area efficiency, the project location, the photovoltaic simulation installation arrangement and the grid-connected voltage level; and obtain the project land area of ​​the photovoltaic project according to each project parameter in the project parameter set.

[0138] The carbon emission acquisition device for the photovoltaic project proposed in the present application acquires the land use scenario set of the project land area of ​​the photovoltaic project, and the scenario carbon emission parameter set under each land use scenario in the land use scenario set, and obtains the target carbon emission of the photovoltaic project within the project life time range according to the scenario carbon emission parameter set under each land use scenario. In the present application, based on the development progress of the photovoltaic project within the project life time range, the land use scenario set of the project land area is determined, and according to the scenario carbon emission parameter set of each land use scenario set, the target carbon emission of the photovoltaic project within the project life time range is obtained, thereby realizing the accurate acquisition of the carbon emissions within the entire project life time range of the photovoltaic project, improving the accuracy of the acquisition of the carbon emissions of the photovoltaic project within the project life time range, and realizing the effective quantification of the carbon emissions of the photovoltaic project within the project life time range.

[0139] In order to implement the above embodiments, the present application also proposes an electronic device, comprising: a processor, and a memory communicatively connected to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the method for obtaining carbon emissions of photovoltaic projects provided in the above embodiments.

[0140] In order to implement the above embodiments, the present application also proposes a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the method for obtaining carbon emissions of photovoltaic projects provided in the above embodiments.

[0141] In order to implement the above embodiments, the present application also proposes a computer program product, including a computer program, which, when executed by a processor, implements the method for obtaining carbon emissions of a photovoltaic project provided by the above embodiments.

[0142] The collection, storage, use, processing, transmission, provision and disclosure of user personal information involved in this application are in compliance with relevant laws and regulations and do not violate public order and good morals.

[0143] It should be noted that personal information from users should be collected for legitimate and reasonable purposes and should not be shared or sold outside of these legitimate uses. In addition, such collection / sharing should be carried out after receiving the user's informed consent, including but not limited to notifying the user to read the user agreement / user notice and sign the agreement / authorization including authorization of relevant user information before the user uses the function. In addition, any necessary steps should be taken to protect and safeguard access to such personal information data and ensure that others who have access to personal information data comply with its privacy policy and procedures.

[0144] The present application is expected to provide an implementation scheme for users to selectively block the use or access of personal information data. That is, the present disclosure is expected to provide hardware and / or software to prevent or block access to such personal information data. Once the personal information data is no longer needed, the risk can be minimized by limiting data collection and deleting the data. In addition, when applicable, such personal information is de-identified to protect the privacy of the user.

[0145] In the description of the aforementioned embodiments, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0146] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0147] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0148] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute the instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0149] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0150] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0151] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0152] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for obtaining carbon emissions from a photovoltaic project, characterized in that: The method comprises: Obtaining a land use scenario set of a project land area of ​​a photovoltaic project within the project life time range, wherein the land use scenario set includes a land use type conversion scenario, a land management scenario, and a land restoration scenario; For any land use scenario, obtaining a scenario carbon emission parameter set of the project land area of ​​the photovoltaic project under the land use scenario; According to a set of scenario carbon emission parameters of the project land area under each land use scenario in the land use scenario set, a target carbon emission amount of the photovoltaic project within the project life time range is obtained.

2. The method according to claim 1, characterized in that: For any land use scenario, obtaining a set of scenario emission parameters of the project land area of ​​the photovoltaic project under the land use scenario includes: In response to the land use scenario being the land use type conversion scenario, obtaining a first biomass carbon pool change value of a first plant biomass carbon pool and a first soil carbon pool change value of a first soil carbon pool of the project land area under the land use type conversion scenario; The scenario emission parameter set of the project land area under the land use type conversion scenario is obtained according to the first biomass carbon pool change value and the first soil carbon pool change value.

3. The method according to claim 1, characterized in that For any land use scenario, obtaining a set of scenario emission parameters of the project land area of ​​the photovoltaic project under the land use scenario includes: In response to the land use scenario being the land management scenario, obtaining a second biomass carbon pool change value of the second plant biomass carbon pool of the project land area under the land management scenario, nitrous oxide emissions of the project land area under the land management scenario, and carbon dioxide emissions generated by lime and urea application of the project land area under the land management scenario; According to the second biomass carbon pool change value, the nitrous oxide emissions and the carbon dioxide emissions, the scenario emission parameter set of the project land area under the land management scenario is obtained.

4. The method according to claim 1, characterized in that For any land use scenario, obtaining a set of scenario emission parameters of the project land area of ​​the photovoltaic project under the land use scenario includes: In response to the land use scenario being the land restoration scenario, obtaining a third biomass carbon pool change value of the third plant biomass carbon pool and a second soil carbon pool change value of the second soil carbon pool of the project land area under the land restoration scenario; According to the third biomass carbon pool change value and the second soil carbon pool change value, the scenario emission parameter set of the project land area under the land restoration scenario is obtained.

5. The method according to any one of claims 1 to 4, characterized in that: The target carbon emissions of the photovoltaic project within the life span of the project are obtained according to the scene emission parameter set of the project land area under each land use scene in the land use scene set, including: Get the preset carbon emission calculation formula; The parameters included in the scene emission parameter set under each land use scenario in the land use scenario set are input into the carbon emission calculation formula to obtain the target carbon emissions of the photovoltaic project within the project life span.

6. The method according to claim 5, characterized in that The carbon emissions calculation formula is as follows: Where, ΔC emmission represents the target carbon emission, ΔCB1 represents the first biomass carbon pool change value, ΔC 土壤1 represents the change value of the first soil carbon pool, ΔCB2 represents the change value of the second biomass carbon pool, and ΔCB 恢复 Indicates the change value of the third biomass carbon pool, ΔC 土壤2 represents the change value of the second soil carbon pool, ΔN2O represents the emission of nitrous oxide, ΔN2O represents the global warming potential parameter, and ΔCO2 represents carbon dioxide emissions.

7. The method according to claim 1, characterized in that The method further comprises: Obtaining a set of project parameters of the photovoltaic project, wherein the set of project parameters at least includes a total installed capacity, photovoltaic type, full area efficiency, project location, photovoltaic simulation installation arrangement, and grid-connected voltage level of the photovoltaic project; The project land area of ​​the photovoltaic project is obtained according to each project parameter in the project parameter set.

8. A device for obtaining carbon emissions from a photovoltaic project, characterized in that: The device comprises: A first acquisition module is used to acquire a land use scenario set of a project land area of ​​a photovoltaic project within the project life time range, wherein the land use scenario set includes a land use type conversion scenario, a land management scenario, and a land restoration scenario; A second acquisition module is used to acquire, for any land use scenario, a scenario carbon emission parameter set of the project land area of ​​the photovoltaic project under the land use scenario; The third acquisition module is used to obtain the target carbon emissions of the photovoltaic project within the project life span according to the scene carbon emission parameter set of the project land area under each land use scenario in the land use scenario set.

9. The device according to claim 8, characterized in that The second acquisition module is further used for: In response to the land use scenario being the land use type conversion scenario, obtaining a first biomass carbon pool change value of a first plant biomass carbon pool and a first soil carbon pool change value of a first soil carbon pool of the project land area under the land use type conversion scenario; The scenario emission parameter set of the project land area under the land use type conversion scenario is obtained according to the first biomass carbon pool change value and the first soil carbon pool change value.

10. The device according to claim 8, characterized in that The second acquisition module is further used for: In response to the land use scenario being the land management scenario, obtaining a second biomass carbon pool change value of the second plant biomass carbon pool of the project land area under the land management scenario, nitrous oxide emissions of the project land area under the land management scenario, and carbon dioxide emissions generated by lime and urea application of the project land area under the land management scenario; According to the second biomass carbon pool change value, the nitrous oxide emissions and the carbon dioxide emissions, the scenario emission parameter set of the project land area under the land management scenario is obtained.

11. The device according to claim 8, characterized in that The second acquisition module is further used for: In response to the land use scenario being the land restoration scenario, obtaining a third biomass carbon pool change value of the third plant biomass carbon pool and a second soil carbon pool change value of the second soil carbon pool of the project land area under the land restoration scenario; According to the third biomass carbon pool change value and the second soil carbon pool change value, the scenario emission parameter set of the project land area under the land restoration scenario is obtained.

12. The device according to any one of claims 8 to 11, characterized in that: The third acquisition module is further used for: Get the preset carbon emission calculation formula; The parameters included in the scene emission parameter set under each land use scenario in the land use scenario set are input into the carbon emission calculation formula to obtain the target carbon emissions of the photovoltaic project within the project life span.

13. The device according to claim 12, characterized in that The carbon emissions calculation formula is as follows: Where, ΔC emmission represents the target carbon emission, ΔCB1 represents the first biomass carbon pool change value, ΔC 土壤1 represents the change value of the first soil carbon pool, ΔCB2 represents the change value of the second biomass carbon pool, and ΔCB 恢复 Indicates the change value of the third biomass carbon pool, ΔC 土壤2 represents the change value of the second soil carbon pool, ΔN2O represents the emission of nitrous oxide, ΔN2O represents the global warming potential parameter, and ΔCO2 represents carbon dioxide emissions.

14. The device according to claim 8, characterized in that The first acquisition module is further used for: Obtaining a set of project parameters of the photovoltaic project, wherein the set of project parameters at least includes a total installed capacity, photovoltaic type, full area efficiency, project location, photovoltaic simulation installation arrangement, and grid-connected voltage level of the photovoltaic project; The project land area of ​​the photovoltaic project is obtained according to each project parameter in the project parameter set.

15. An electronic device, characterized in that: include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 7.

16. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 7 when executed by a processor.

17. A computer program product, characterized in that The invention comprises a computer program, which implements the method according to any one of claims 1 to 7 when being executed by a processor.

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